Radiator cap



Oct. 14 1924. 1,511,427

7 v E. RUTT RADIATOR CAP Original Filed April 5, 1922 V All/1 WITNESS:ATTORNEY Patented (Jet, 14, I924,

PATEN QFFHZE.

RADIATOR CAP.

enea el m nati n le Ar 3 ,22 r a No- 9 31 Div des nd is a p i ation led412 2 1 1- 2 Serie am 2 a l whom it may onc r Be it known that I, EDWARDRU'r'r, a citizen of the United States, residing at Sonoma, in thecounty of Sonoma and State of California, have invented new and usefulImprovements in Radiator Caps, of which the following is aspecification.

This invention relates to radiators for motor vehicles and is a divisionof my prior application for patent on radiators filed April 3rd, 1922,Serial #549,131.

The present invention relates to caps for the radiators of automobiles,and has for its object the provision of a cap having novel means forlooking it in position and also equipped with means for admitting air,the air admission means being designed to be closed in cold weather.

Another object is the provision of a cap of this character which isadjustable so that the size of the openings for the air may be regulatedat will in a very simple manner,

An additional object is the provision of a cap of this character whichwill be simple and inexpensive to manufacture, eilicien't and durable inuse, positive in action and a general improvement in the art.

IVith the above and other objects and advantages in view the inventionconsists in the details of construction to be hereinafter more fullydescribed and claimed and illustrated in the accompanying drawings, inwhich:

Figure l is a front elevation of a ment of an automobile radiatorshowing my cap thereon,

Figure 2 is an elevation at right angles to Figure 1 Figure 3 is avertical section through the cap and radiator neck and Figure 4 is asimilar view taken in a plane at right angles to Figure 3.

Referring more particularly to the draw ings, the letter A designates aportion of a radiator equipped with a neck B which is externallythreaded for engagement thereon of the cap to be described. Near itsjuncture with the radiator, the neck is formed with a hollow extension10 within which is slidable a plunger 11 having a head 12 connected withone end of a retractile coil spring 13, and provided exteriorly of thehollow extension with an operating button 14, The other end of thespring is anchored y b ing pa se re eh he p nger re i ns hole in he nckend; subsequent y bea or hooked.

Screwed onto the neck is the cap 15 which is formed at its lower edgewith a notch 16 normally engaged by the plunger 11 for locking the capagainst casual rotation so that it will not jar loose and become lost.The cap is provided in one side with a plurality of air admitting holes17 which are designed to be closed to a variable extent by means of adisk 18 mounted within the cap and slidable upon rods 19 therein.Secured against the underside of the top of the cap is a plate 20 at thecenter of which is swiveled a screw 21 which is threaded through thedisk 18. By turnin the screw in one direction or the other, t e disk 18may be moved to cover the holes 17 partly or entirely as may be desiredand as may be found advisable under certain conditions. In actualpractice it is intended that the holes be closed in cold weather andopened to a greater or less extent in warm weather. Whenever it isdesired to remove the cap it is merely necessary to press the button 11- inwardly, so that the head 12 thereof will be disenga ed from thenotch 16 which will permit the cap to be unscrewed in the usual manner.

While I have shown and described the preferred embodiment of theinvention it is of course to be understood that I reserve the right tomake such changes in the form, construction and arrangement of parts aswill not depart from the spirit of the invention or the scope of thesubjoined claims.

Having thus described my invention I claim:

1. In a radiator having a filling neck, a hollow projection on the neck,a radially extending spring pressed plunger operating within said hollowprojection and extending therebeyond with said extending end carrying abutton, and a cap screwed upon the neck and formed with a notchreceiving said plunger for preventing casual rotation of the cap.

2. In a radiator having a filling neck, a cap screwed upon the neck andhaving a notch upon its inner periphery at its open end, a hollowprojection on the neck constituting a guide, and an outwardly springpressed plunger slidable through said hollow projection radially of theneck and formed with an upstanding projection engaging within saidnotch.

3. In a radiator having a filling neck, a cap detachably engaged uponsaid neck and formed with holes locatedin its front side, guidesarranged longitudinally within the cap, a disk slidable longitudinallywithin the cap along said guides, and means for moving said diskwherebyits periphery will be disposed in or out of obstructing relation to theholes.

4. In a radiator having a filling neck, 51 cap engaged upon the neck andformed with holes located at one side, a disk slidably mounted formovement longitudinally within the disk for covering or uncovering saidholes and screw means for moving the disk.

5. In a radiator having a filling neck, a cap engaged upon the neck andprovided in its side with holes, guides extending longitudinally withinthe cap, a disk slidable upon said guides and adapted to cover oruncover said holes, and a screw swiveled within the cap and threadedthrough the 26 disk.

In testimony whereof I aflix my signature.

EDWARD BUTT.

